Seiko Cal. 6642 - 686

This Hand-Winding model from 1988 features a 37mm Two-Tone case. It features a Green dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-311cec6c68b0]

Also known as: Bullhead, Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1988

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